VC Output Circuit: Procedure

CHECK MIL CONDITION

Check that the Malfunction Indicator Lamp (MIL) lights up when turning the ignition switch to ON.

MIL lights up.

RESULT

Result	Proceed to
NG	A
OK	B

B → See step 10

A: Go to next step

CHECK CONNECTION BETWEEN TECHSTREAM AND ECM

Connect the Techstream to the DLC3.
Turn the ignition switch to ON.
Turn the Techstream on.

Check for communication between the Techstream and ECM.

RESULT

Result	Proceed to
Communication is not possible	A
Communication is possible	B

B → See step 11

A: Go to next step

CHECK MIL (THROTTLE POSITION SENSOR)

Disconnect the throttle with motor body assembly connector.
Turn the ignition switch to ON.

Check the MIL.

RESULT

Result	Proceed to
MIL does not illuminate	A
MIL illuminates	B

B → See step 12

A: Go to next step

CHECK MIL (MANIFOLD ABSOLUTE PRESSURE SENSOR)

Disconnect the manifold absolute pressure sensor connector.
Turn the ignition switch to ON.

Check the MIL.

RESULT

Result	Proceed to
MIL does not illuminate	A
MIL illuminates	B

B → See step 15

A: Go to next step

CHECK MIL (FUEL PRESSURE SENSOR)

Disconnect the fuel pressure sensor connector.
Turn the ignition switch to ON.

Check the MIL.

RESULT

Result	Proceed to
MIL does not illuminate	A
MIL illuminates	B

B → See step 16

A: Go to next step

CHECK MIL (ACCELERATOR PEDAL SENSOR ASSEMBLY)

Disconnect the accelerator pedal sensor assembly connector.
Turn the ignition switch to ON.

Check the MIL.

RESULT

Result	Proceed to
MIL does not illuminate	A
MIL illuminates	B

B → See step 13

A: Go to next step

CHECK MIL (BATTERY CURRENT SENSOR ASSEMBLY)

Disconnect the battery current sensor assembly connector.
Turn the ignition switch to ON.

Check the MIL.

RESULT

Result	Proceed to
MIL does not illuminate	A
MIL illuminates	B

B → See step 17

A: Go to next step

CHECK MIL (CANISTER PUMP MODULE)

Disconnect the canister pump module connector.
Turn the ignition switch to ON.

Check the MIL.

RESULT

Result	Proceed to
MIL does not illuminate	A
MIL illuminates	B

B → See step 18

A: Go to next step

CHECK HARNESS AND CONNECTOR (EACH SENSOR - ECM)

Disconnect the throttle with motor body assembly connector.
Disconnect the manifold absolute pressure sensor connector.
Disconnect the fuel pressure sensor connector.
Disconnect the accelerator pedal sensor assembly connector.
Disconnect the battery current sensor assembly connector.
Disconnect the canister pump module connector.
Disconnect the ECM connectors.

Measure the resistance according to the value(s) in the table below.

Standard Resistance

Tester Connection	Condition	Specified Condition
A36-19 (VC) - Body ground	Always	10 kΩ or higher
A35-22 (VCP2) - Body ground	Always	10 kΩ or higher
A35-21 (VCPA) - Body ground	Always	10 kΩ or higher

NG → REPAIR OR REPLACE HARNESS OR CONNECTOR

OK → See step 14

PROCEED TO NEXT SUSPECTED AREA SHOWN IN PROBLEM SYMPTOMS TABLE. Refer to PROBLEM SYMPTOMS TABLE [07/2013 - 12/2013]
GO TO MIL CIRCUIT. Refer to MIL Circuit
REPLACE THROTTLE WITH MOTOR BODY ASSEMBLY. Refer to REMOVAL [07/2013 - ]
REPLACE ACCELERATOR PEDAL SENSOR ASSEMBLY. Refer to REMOVAL [07/2013 - ]
REPLACE ECM. Refer to REMOVAL [07/2013 - 12/2013]
REPLACE MANIFOLD ABSOLUTE PRESSURE SENSOR. Refer to REMOVAL [07/2013 - ]
REPLACE FUEL PRESSURE SENSOR. Refer to REMOVAL [07/2013 - ]
REPLACE BATTERY CURRENT SENSOR ASSEMBLY. Refer to REMOVAL [07/2013 - ]
REPLACE CANISTER PUMP MODULE. Refer to REMOVAL [07/2013 - ]